What is image-to-PDF conversion?
Image-to-PDF conversion combines one or more JPG, PNG, or WEBP images into a single PDF document with selectable page size, orientation, and margins. It is the standard way to assemble photographed receipts, scanned IDs, and homework pages into one shareable, archive-friendly file.
Convert Images to PDF Free
Merge unlimited JPG, PNG, WebP, HEIC images into one PDF. Reorder, rotate, set page size. Free, no signup, no watermark, instant download.
About Image To PDF
Image to PDF combines photos, screenshots, and scans into a single PDF document. Supports JPG, PNG, WebP, BMP, GIF, TIFF, and even HEIC/HEIF (iPhone photos) via the heic2any library. The critical feature most tools miss is EXIF orientation handling: iPhone and Android photos are often stored sideways on disk with an EXIF rotation flag telling viewers to rotate them 90° or 180° on display. We parse the EXIF 0x0112 tag from the first 128 KB of each JPEG and apply the correct rotation before embedding — otherwise your photos would come out sideways in the PDF.
Beyond standard single-image-per-page output, the tool supports four layout modes: 1-up (one image per page, standard), 2-up (two images per page), 4-up (grid of 4), and contact sheet (4×5 thumbnail grid — 20 images per page, useful for photo reviews and document inventories). Each image has its own fit mode (Fit to preserve aspect, Fill to crop, Stretch to fill, or Original for native pixel size), and page settings include 5 sizes (A4, Letter, Legal, A3, A5) plus a "Fit Image" mode that matches page dimensions to the image.
Key Features
- EXIF orientation parsing — iPhone/Android photos auto-rotate to their correct orientation
- HEIC and HEIF support via heic2any — iPhone photos work directly without pre-conversion
- Four layout modes — 1-up, 2-up, 4-up grid, contact sheet (4×5)
- Four fit modes per image — Fit, Fill, Stretch, Original
- 5 page sizes plus "Fit Image" mode that matches the page to the image dimensions
- Four margin presets — None, Small, Medium, Large (plus custom in points)
- Batch process up to 50 images (20 MB each) per session
- Runs in browser — photos never upload, especially important for personal/private images
How to Use Convert Images to PDF Free
- Step 1: Drop your images into the drop zone (or click to browse). JPG, PNG, WebP, BMP, GIF, TIFF, HEIC, HEIF all supported.
- Step 2: Reorder images by dragging them in the queue — final PDF page order matches queue order
- Step 3: Pick the page size (A4 or Letter are standard), layout mode (1-up default), and fit mode
- Step 4: Optionally adjust margins — Small for photo books, Large for presentations
- Step 5: Click Create PDF — EXIF orientations are corrected, HEIC files are converted, and pdf-lib builds the PDF in your browser. Download the result.
Who Uses This Tool
- Students turning textbook photos into searchable PDF notes
- Business travelers combining expense receipts into single PDF submissions
- Real estate agents compiling property photo sets into client PDFs
- Students scanning handwritten notes on their phone and combining into study PDFs
- Lawyers bundling evidence photos into case exhibit PDFs
- Photographers sending contact sheets to clients for proof review
Why Choose PDF AI Tools
We've built PDF AI Tools to replace expensive desktop software like Adobe Acrobat for 95% of common document workflows — at zero cost to you. Unlike competitors who gate features behind paywalls, add watermarks, or limit file sizes, our tools are genuinely free and genuinely unlimited. Your privacy matters: files processed client-side in your browser never touch our servers, and even AI-powered features use encrypted, auto-deleting processing pipelines.
Frequently Asked Questions
Why do my iPhone photos come out rotated in other image-to-PDF tools but not this one?
iPhone and Android photos store the image data in its native sensor orientation (usually landscape) and add an EXIF tag telling viewers how to rotate for display. Most image-to-PDF tools ignore the EXIF tag and embed the raw pixels as-is, producing sideways output. We parse the EXIF orientation tag (0x0112) from the first 128 KB of each JPEG and rotate the image accordingly before embedding, so the PDF shows your photos right-side up.
Can I combine photos from my iPhone (HEIC format) directly?
Yes. HEIC/HEIF files are converted to JPEG on-the-fly via the heic2any library before embedding. You don't need to pre-convert in the Photos app — just drop the .heic files straight in. The conversion happens in your browser so photos never upload.
What's "contact sheet" layout for?
It's a 4×5 grid of 20 images per page — useful for visual inventories (stock photos, product catalogs), document scan reviews (see 20 pages at a glance), photo shoot reviews, or archival thumbnail indexing. Each image is labeled with its filename underneath for reference.
What's the difference between Fit, Fill, Stretch, and Original fit modes?
Fit preserves the image's aspect ratio and adds whitespace if needed to avoid cropping (best default). Fill crops the image to completely fill the page area while preserving aspect ratio. Stretch distorts the image to exactly match the page dimensions (rarely useful). Original embeds the image at its native pixel size regardless of page size.
How many images can I combine into one PDF?
Up to 50 images per session, 20 MB per image. For larger batches, split into multiple sessions — the final PDFs can then be merged with our Merge PDF tool.
What's "Fit Image" page size?
Instead of using a standard size like A4, each page matches the dimensions of its image exactly — no whitespace, no cropping. Useful when the images have varied aspect ratios (screenshots at different resolutions, for example) and you want each to display cleanly.